1246961449 has 2 divisors, whose sum is σ = 1246961450. Its totient is φ = 1246961448.

The previous prime is 1246961423. The next prime is 1246961461. The reversal of 1246961449 is 9441696421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1201870224 + 45091225 = 34668^2 + 6715^2 .

It is a cyclic number.

It is not a de Polignac number, because 1246961449 - 2¹⁵ = 1246928681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1246961399 and 1246961408.

It is not a weakly prime, because it can be changed into another prime (1246961479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623480724 + 623480725.

It is an arithmetic number, because the mean of its divisors is an integer number (623480725).

Almost surely, 2^1246961449 is an apocalyptic number.

It is an amenable number.

1246961449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1246961449 is an equidigital number, since it uses as much as digits as its factorization.

1246961449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 46.

The square root of 1246961449 is about 35312.3413129178. The cubic root of 1246961449 is about 1076.3437888502.

It can be divided in two parts, 1246961 and 449, that added together give a triangular number (1247410 = T₁₅₇₉).

The spelling of 1246961449 in words is "one billion, two hundred forty-six million, nine hundred sixty-one thousand, four hundred forty-nine".